Horrible colors on external monitor using macbook air(2012) with mini dp to hdmi

I have one of the new macbook airs (2012) hooked up to an external monitor (Dell SR2320L) using a mini display port to hdmi adapter.

The dsiplay shows up fine on the external monitor, except for the colors and contrast being terrible. Any color grey on a white background doesnt even seem to render. However if I look at that same image on the airs screen, I can see all of the grey colors perfectly. I have tested the hdmi cable and monitor on different computers and they work perfectly. I have tried three different adapters all with the same problems, leaving me to believe that there is something wrong with the macbook air itself and its ability to output a mini display port signal.

Samsung syncmaster t240 (24"). Colors are horrible. Tried calibrating with the expert mode. It feels almost as before, expect some colors and specific places comes off realy bad. Like the casted shadows from a window to another if terribly rendered.

I have also noticed problem when logging into from locked screensaver option that wallpaper dissapears on external display over hdmi always. Its just grey, even if i change the wallpaper over change desktop wallpaper it remains grey until i reconnect hdmi...

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